Drop-Shaped Brush Head Assembly

ABSTRACT

A drop-shaped brush head assembly is revealed. The drop-shaped brush head assembly includes a drop-shaped brush head which is formed by a plurality of bristles and a handle connected to each other. The bristles are used for combing hair and the handle is for support. The handle consists of a plurality of discharge holes on top thereof and a mounting space therein. A paint in the mounting space flows through the discharge holes of the handle and the bristles to be applied to target area. The drop-shaped design of the brush head has a pointy end on top and a larger end on bottom thereof. The pointy end allows users to control the operating angle easily while grooming fine-hair area and the larger end is used to apply the paint to large area conveniently. Thereby the brush head assembly is more convenient to use.

BACKGROUND OF THE INVENTION Field of the Invention

The present invention relates to a brush, especially to a drop-shapedbrush head assembly with an inclined cutting plane.

Description of Related Art

A brush available on the market includes a flat surface on top thereofand a bundle of bristles is disposed over a holder. The operating angleof the brush is difficult to control while using the brush to paint tinyarea. Moreover, the bristles are collected in a bundle so that a paintdischarged from a discharge hole flows along the bristles. However, thebristles are closely attached to each other. Thus the bristles hold moreamount of the paint through capillary action while applying the paintwith the brush. Besides the increased amount of the paint required, thepaint left in the bristles has to be cleaned frequently. Thus there isroom for improvement and there is a need to provide a novel structure ofthe brush head assembly.

SUMMARY OF THE INVENTION

Therefore it is a primary object of the present invention to provide adrop-shaped brush head assembly which is convenient to use. A paint isapplied smoothly. Moreover, the angle of the drop-shaped brush headassembly is easy to control and the brush stroke is smooth.

It is another object of the present invention to provide a drop-shapedbrush head assembly that includes bristles not only able to reduce thecapillary action, but also having good recovery and elasticity.

It is a further object of the present invention to provide a drop-shapedbrush head assembly which provides a constant and uniform amount ofpaint being discharged.

It is further object of the present invention to provide a drop-shapedbrush head assembly which allows paints therein to flow in the singledirection.

In order to achieve the above objects, a drop-shaped brush head assemblyaccording to the present invention includes a drop-shaped brush headformed by a plurality of bristles used for combing hair and a handle forsupport connected to each other. A plurality of discharge holes isdisposed on top of the handle and a mounting space formed in the handle.A paint in the mounting space passes through the discharge holes andcomes out of the handle to be applied to an area users intend to paintby the top of the respective bristle. The water drop design of the brushhead has a pointy end on top and a larger end on bottom thereof. Thepointy end allows users to control the operating angle easily whilegrooming fine-hair area and the larger end is used to apply the paint tolarge area conveniently. Thereby the brush head is more convenient andeasier to use and the paint is applied smoothly.

A circular abutting member is set around the handle and used forallowing the drop-shaped brush head to abut against an inner wall of acontainer.

The bristle is composed of an elastic tapered cylinder and a curved headformed on top of the cylinder. The bristles are arranged at a topsurface of the handle with the same interval between the two adjacentbristles. Besides reduction of the capillary action, the deformation ofthe bristle with elasticity is minimized and the recovery of the bristleafter brushing is enhanced.

A middle part of the top surface is a curved surface projecting a bitfrom the plane while the height of the respective bristles is decreasedfrom the center to the edge of the top surface. Thereby the bristlesnear the center of the top surface can be closely attached to the areausers intend to paint. The bristles on the periphery of the top surfaceare in contact with other area once the drop-shaped brush head assemblyis inclined at a little angle.

The top surface is drop-shaped with a pointy end on the upper side and alarger end on the lower side. The discharge holes are not distributeduniformly. Instead, they are concentrated at the center and decreasedwith the distance from the center of the top surface.

A piston rod is mounted in the mounting space of the drop-shaped brushhead. The piston rod is connected to a sleeve and an elastic member isdisposed between the piston rod and the sleeve. Thus the drop-shapedbrush head assembly is movable in the axial direction. At least onedischarge hole is radially passed through the sleeve and located closeto the bottom of the sleeve. A non-return film is covered the dischargeopening for backflow prevention. Thus the paint will not flow backwardsonce entering the sleeve. The non-return film is designed to allow theflow only in one direction and protect the paint from contaminationcaused by the backflow.

BRIEF DESCRIPTION OF THE DRAWINGS

The structure and the technical means adopted by the present inventionto achieve the above and other objects can be best understood byreferring to the following detailed description of the preferredembodiments and the accompanying drawings, wherein:

FIG. 1 is a perspective view of an embodiment in use according to thepresent invention;

FIG. 2 is an explosive view of a drop-shaped brush head, a piston rodand a sleeve of an embodiment according to the present invention;

FIG. 3 is a perspective view of an embodiment according to the presentinvention;

FIG. 4 is a schematic drawing showing a front view of an embodimentaccording to the present invention;

FIG. 5 is a schematic drawing showing a sectional view of an embodimentaccording to the present invention;

FIG. 6 is a bottom view of an embodiment according to the presentinvention;

FIG. 7 is a schematic drawing showing a sectional view of an embodimentin use according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Refer to FIG. 1 and FIG. 2; a drop-shaped brush head assembly with aninclined cutting plane (oblique section plane) is revealed. Thedrop-shaped brush head assembly includes a drop-shaped brush head 10, ahollow piston rod 20, and a hollow sleeve 30. A mounting space 142 isarranged at the drop-shaped brush head 10 and the hollow piston rod 20is mounted in the mounting space 142. The piston rod 20 includes aleaning portion 21, a rod body 22 extended from one end of the leaningportion 21 and a fixing portion 23 extended from and arranged at theother end of the leaning portion 21. The hollow sleeve 30 is mounted onthe rod body 22 of the piston rod 20 and an elastic member 40 isdisposed between the piston rod 20 and the sleeve 30. The sleeve 30consists of a shaft body 31, a conical bottom portion 33 tapered fromone end of the shaft body 31, a circular flange 32 extended outward andarranged at the other end of the shaft body 31, at least one dischargeopening 34 radially passed through the conical bottom portion 33 and anon-return film 35 covered the discharge opening 34.

Refer to FIG. 3 and FIG. 4, the drop-shaped brush head 10 is composed ofa plurality of bristles 12 used for grooming hair and a handle 14 forsupport connected to each other. Each of the bristle 12 is composed ofan elastic tapered cylinder 121 and a curved head 122 formed on top ofthe tapered cylinder 121. A circular abutting member 144 that abuts isset around a lower end of the handle 14. The bristles 12 are arranged ata top surface 141 of the handle 14 with the same interval between thetwo adjacent bristles 12. Besides reduction of the capillary action, thedeformation of the bristle with elasticity is minimized and the recoveryof the bristle after arranging is enhanced. The top surface 141 is adrop-like sloping surface. Refer to FIG. 5 and FIG. 6, the mountingspace 142 is formed in the handle 14 under the top surface 141 while aplurality of discharge holes 143 is disposed on the top surface 141 andcommunicating with the mounting space 142.

The drop-shaped brush head 10 can be made from flexible plasticmaterial. The bristles 12 and the handle 14 are integrally formed bymachines.

Refer to FIG. 4, the top surface 141 of the drop-shaped brush head 10looks like a water drop having a pointy end on top and a larger end onbottom thereof. The pointy end on top of the top surface 141 allowsusers to control the operating angle easily while grooming fine-hairarea. The larger end on bottom of the top surface 141 is used to apply apaint to large area conveniently. Thereby the drop-shaped brush head 10is more convenient to use and the paint is applied smoothly.

The discharge holes 143 in FIG. 4 are not distributed uniformly. Theyare concentrated at the center and decreased with the distance from thecenter of the top surface 141. For constant and uniform discharge of thepaint, the number of the discharge holes 143 is directly proportional tothe surface area of the top surface 141. In other words, the larger thesurface area of the top surface 141, the more the number of thedischarge holes 143.

As shown in FIG. 4 and FIG. 5, the height of the bristles 12 of thedrop-shaped brush head 10 is decreased from the center to the edge ofthe top surface 141. Refer to FIG. 5, a middle part of the top surface141 (a middle part of the oblique section plane) is a curved surfaceprojecting a bit from the plane. Thereby the bristles 12 near the centerof the top surface 141 can be closely attached to the area users intendto paint. Then the drop-shaped brush head assembly is inclined at alittle angle to make the bristles 12 on the periphery of the top surface141 contact other area. The angle of the brush head assembly is easy tocontrol and the brush stroke is smooth. Moreover, while the user usesthe brush head assembly to paint a large-surface area, the curvedsurface of the stop surface 141 is firstly in contact with the area andthe paint over the curved surface is coated on the area. Thus the amountof the paint retained is reduced.

Refer to FIG. 5, the shape of the mounting space 142 is corresponding tothe inclined tapered shape of the handle 14. As shown in FIG. 6, thedischarge holes 143 are communicating with the mounting space 142.

Refer to FIG. 2, FIG. 5 and FIG. 7, the drop-shaped brush head 10 isconnected to one end of a container 50 with a paint therein. By thecircular abutting member 144, the drop-shaped brush head 10 abutsagainst an inner wall of the container 50. The container 50 can be abottle, a pen or a flexible tube, provided with a cap 52. When the cap52 is rotate and removed, the elastic member 40 provides an elasticforce to make the piston rod 20 move upward for driving the drop-shapedbrush head 10 to move. At the same time, the paint in the container 50passes through the discharge opening 34 and the non-return film 35, andenters the sleeve 30. Then the paint keeps moving through the piston rod20, the mounting space 142 in the drop-shaped brush head 10 and thedischarge holes 143 of the handle 14 and then comes out of thedrop-shaped brush head 10 to be evenly distributed on the bristles 12.Thus users can apply the paint to the area he/she intends to paint bythe top of the respective bristle 12. The drop-shaped brush head 10 canbe used to arrange any body hair (such as eyebrow or head hair) formultiple purposes such as beautification, coloring, or treatment.

What is claimed is:
 1. A drop-shaped brush head assembly comprising: adrop-shaped brush head including a handle having a drop-shaped topsurface, a mounting space therein between the top surface and a bottomof the handle, and a plurality of discharge holes located on the topsurface and communicating with the mounting space; and a plurality ofbristles that are connected to the handle and arranged at the topsurface of the handle with the same interval between the two adjacentbristles; a piston rod that includes a leaning portion, a rod bodyextended from one end of the leaning portion, and a fixing portionextended from the other end of the leaning portion and mounted in themounting space; and a sleeve mounted on the rod body and including ashaft body, a conical bottom portion tapered from one end of the shaftbody, a circular flange extended outward and arranged at the other endof the shaft body, at least one discharge opening radially passedthrough the conical bottom portion, and a non-return film covered thedischarge opening.
 2. The assembly as claimed in claim 1, wherein acircular abutting member that abuts is set around a lower end of thehandle.
 3. The assembly as claimed in claim 1, wherein the bristleincludes an elastic tapered cylinder and a curved head formed on top ofthe tapered cylinder.
 4. The assembly as claimed in claim 1, wherein amiddle part of the top surface is a curved surface projecting a bittherefrom while the height of the bristles is decreased from the centerto the edge of the top surface.
 5. The assembly as claimed in claim 1,wherein the discharge holes are concentrated at the center of the topsurface and decreased with the distance from the center of the topsurface.
 6. The assembly as claimed in claim 1, wherein an elasticmember is set between the piston rod and the sleeve.
 7. The assembly asclaimed in claim 1, wherein the bristles and the handle are made fromflexible plastic material and integrally formed.
 8. The assembly asclaimed in claim 1, wherein the drop-shaped brush head is connected to acontainer having at least one paint therein.
 9. The assembly as claimedin claim 8, wherein the container is provided with a cap.
 10. Theassembly as claimed in claim 8, wherein the container is selected fromthe group consisting of a bottle, a pen and a flexible tube.